/*******************************************************************************
 *     ___                  _   ____  ____
 *    / _ \ _   _  ___  ___| |_|  _ \| __ )
 *   | | | | | | |/ _ \/ __| __| | | |  _ \
 *   | |_| | |_| |  __/\__ \ |_| |_| | |_) |
 *    \__\_\\__,_|\___||___/\__|____/|____/
 *
 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2022 QuestDB
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 ******************************************************************************/

package io.questdb.cutlass.line.tcp;

public class AggressiveRecvLineTcpConnectionContext extends LineTcpConnectionContext {

    private final int aggressiveReadRetryCount;

    AggressiveRecvLineTcpConnectionContext(LineTcpReceiverConfiguration configuration, LineTcpMeasurementScheduler scheduler) {
        super(configuration, scheduler);
        this.aggressiveReadRetryCount = configuration.getAggressiveReadRetryCount();
    }

    @Override
    IOContextResult handleIO(NetworkIOJob netIoJob) {
        IOContextResult rc;
        read();
        do {
            rc = parseMeasurements(netIoJob);
        } while (rc == IOContextResult.NEEDS_READ && read());
        return rc;
    }

    @Override
    protected boolean read() {
        if (super.read()) {
            return true;
        }

        int remaining = aggressiveReadRetryCount;

        while (remaining > 0) {
            if (super.read()) {
                return true;
            }
            remaining--;
        }

        return false;
    }
}
